package com.wwk.jobs;

import com.wwk.constant.RedisConstant;
import com.wwk.utils.QiniuUtils;
import org.springframework.beans.factory.annotation.Autowired;
import redis.clients.jedis.JedisPool;

import java.util.Set;

/**
 * @Classname quartzJob 自定义Job，实现定时清理垃圾图片
 * @Description TODO
 * @Date 2020/11/3 20:35
 * @Created by com.wwk
 * @Author wwk
 */
public class QuartzJob {
    @Autowired
    private JedisPool jedisPool;

    public void cleanPic(){
        //根据Redis中保存的两个set集合进行差值计算，获得垃圾图片名称集合
        Set<String> set = jedisPool.getResource().sdiff(RedisConstant.SETMEAL_PIC_RESOURCES, RedisConstant.SETMEAL_PIC_DB_RESOURCES);

        if (set != null && set.size()>0) {
            for (String picName : set) {
                //删除七牛云服务器上的图片
                QiniuUtils.deleteFileFromQiniu(picName);
                //从Redis集合中删除图片名称
                jedisPool.getResource().srem(RedisConstant.SETMEAL_PIC_RESOURCES,picName);
                System.out.println("自定义任务执行，清理垃圾图片："+picName);
            }
        }
    }
}
